The mysterious metal cylinder, which is not thought to be a missile or rocket, landed in the tiny village of Otradnensky and is now under police guard

TA mysterious “UFO fragment” has crash landed in a tiny village in Siberia sparking frenzied speculation about its origins.

Space experts are investigating the large metallic domed cylinder, which is now under police guard after being removed from the remote village of Otradnensky.

Locals claim the space debris, which weighs 200 kilograms and is around two metres in height, fell from the sky.

The U-shaped object reportedly landed in a thick forest where it was attached to a trailer and dragged to the village, where residents informed authorities in Moscow.

Tests have shown that the “UFO fragment” is not radioactive and appears to be made of titanium alloy, according to Valery Vasiliev, head of the Kuybyshevsky Department for Civil Defence and Emergency Situations.

But experts have concluded it is not a rocket or a missile and the Russian Federal Space Agency has denied ownership of the object.

In a statement, Rosmoscos said: “The object found is not related to space technology. A final conclusion can be made after a detailed study of the object by experts.”

UFO? The Russian Federal Space Agency has said the metal object does not belong to them

Speculation that the metal debris had come from a bungled rocket or satellite launch in Kazakhstan has also been denied.

Finder Sergey Bobrov pledged to keep the UFO safe in a statement, however local police spokesman Sergei Sulein confirmed the object was now under guard.

He said: “You can see inside it, all is open, it’s empty, no danger here. We were asked to take and store it. We brought it here.

“And now we are going to wait until they come to take it if they need it.”